Thus George Washington could essentially adopt two children ... by bloodline (lineage of the president’s parents (father and mother)”—but the descendants of the Custis grandchildren could ...

But unlike George Washington, who is interred in a magnificent ... only the brothers’ kinship relationships and not their mother’s, who married into the family,” Mulligan told CNN.

Samuel Walter Washington and George Steptoe Washington Jr., as well as their mother, Lucy Payne Washington, from unmarked, fragmentary bones buried at West Virginia's Harewood family cemetery in ...